Hacker News Board Hacker News, browsed like a classic message board
Live data from Hacker News

Using the Internet without IPv4 connectivity

jamesmcm.github.io

Post reply on HN
Print view View original

111–120 of 133 posts

Re: Using the Internet without IPv4 connectivity

#111

Post by nadermx »

somidscr21 wrote: post #56
jeroenhd wrote: post #39

Earlier quoted context omitted.

I don't think moving off IPv4 is on anyone's radar yet, unless you're buying VPS services that often come with a discount when you run on IPv6 only. In practice, you'll probably always have IPv4 connectivity of some sort, even though it's probably going to become more and more likely that that connectivity is attained through CGNAT. Github is especially infuriating. For a few weeks, they ran a test, everything seemed…

The US government is under a mandate to move to v6 only, so it's very much on some radars. Hopefully some ISPs follow suit.

https://www.whitehouse.gov/wp-content/uploads/2020/11/M-21-0...

Is it on schedule? 80% by 2025.

Re: Using the Internet without IPv4 connectivity

#113

Post by ncruces »

pumplekin wrote: post #13

If you ever need a quick hack to get v4 connectivity over a true v6 only setup, you can use a public DNS64+NAT64 Gateway. You can find a list at https://nat64.net/public-providers . So for most regular use, all you are doing is changing DNS servers. This is the combo. ** 1. DNS64 Synthesis of AAAA DNS records for things that don't have them to a NAT64 box. $ dig +short @2a00:1098:2c::1 AAAA github.com 2a01:4f8:c2c:12…

Came here to say this. Over Europe, https://nat64.net/ directly, at least, is pretty cool. Only had good experiences with them.

Re: Using the Internet without IPv4 connectivity

#114

Post by snuxoll »

School-Cotton wrote: post #86
msgodel wrote: post #68

Earlier quoted context omitted.

Most ISPs still just block IPv6 altogether because most small businesses seem to try IPv6 once and then forget to eg update their AAAA records so to the user it looks like their favorite niche thing works when they're on but not on the one they're paying for which creates problems. It's kind of a weird issue, I don't know if there are nice solutions other than hoping IPv4 just goes away eventually. Happy eyeballs was…

> Most ISPs still just block IPv6 altogether That’s increasingly not true, at least in developed countries. Traffic to Google in the US has been majority IPv6 since a few months ago.

I mean, basically every major mobile in the developed world adopted IPv6 when they were rolling out new core infrastructure to handle LTE (T-Mobile USA being notable as one of the first to go IPv6 only). When you consider the deployment of VoLTE (and now VoNR for 5G networks) in particular, rolling out IPv6 internally removes a lot of nastiness that SIP/IMS have with NAT (and CG-NAT in particular), so it's little surprise that it happened.

What surprises me more is the very mixed state of small to midsized ISPs. Sparklight (regional cable provider) still does not support IPv6 in any fashion even though it would be financially beneficial to auction off a significant portion of its v4 holdings (nearly 1.3mm addresses), deploy DNS64+NAT64 (plus CG-NAT as a fallback) and hold onto a chunk for their business customers who still need inbound v4 connectivity. My local fixed-wireless ISP that's my only real option (love them, but this is a bugbear of mine) since I moved last year only offers CG-NAT, and I know their equipment can handle v6 fine which would save them some resources (no expensive state tracking on edge equipment or dedicated CG-NAT gateways) and provide a better customer experience (multiplayer games, VoIP traffic, etc.)

Re: Using the Internet without IPv4 connectivity

#115

Post by psim1 »

There's an IPv6 article that's been on the front page for the better part of a day and to my incredulity, the "IPv6 sucks; why don't we just add more segments to the IPv4 address" guys haven't shown up yet. Where the hell are you, dudes? Do you take the weekend off?

Re: Using the Internet without IPv4 connectivity

#116

Post by ianburrell »

xacky wrote: post #35

I have strong opinions about ipv4, especially since I'm forced to use an ipv4 isp. The lack of ipv6 adoption should be considered one of the great failures of tech. Who actually is responsible? Is it router manufacturers writing poor quality firmware, ipv4 advocates in leadership positions at isps, ipv4 address speculators, poor training of network engineers and tech support staff? I think we all need to have a much…

The big problem is that there isn't incentive for old companies to migrate. They have addresses and the benefits are mostly for customers who don't know about it. Also, network engineering training is all about IPv4, and it works so they don't want to change.

I think what was needed was organization that could push IPv6. Boring technology needs someone promoting or grows slowly. They could have logo for IPv6 ready devices, and list of ISPs with IPv6. They could write network engineering training for the IPv6 way.

We missed opportunities for cloud computing, Kubernetes, and new companies to be primarily IPv6.

Re: Using the Internet without IPv4 connectivity

#117

Post by xcrunner529 »

snuxoll wrote: post #114
School-Cotton wrote: post #86

Earlier quoted context omitted.

> Most ISPs still just block IPv6 altogether That’s increasingly not true, at least in developed countries. Traffic to Google in the US has been majority IPv6 since a few months ago.

I mean, basically every major mobile in the developed world adopted IPv6 when they were rolling out new core infrastructure to handle LTE (T-Mobile USA being notable as one of the first to go IPv6 only). When you consider the deployment of VoLTE (and now VoNR for 5G networks) in particular, rolling out IPv6 internally removes a lot of nastiness that SIP/IMS have with NAT (and CG-NAT in particular), so it's little sur…

Astound still doesn’t either and they are large.

Re: Using the Internet without IPv4 connectivity

#118

Post by strogonoff »

daneel_w wrote: post #57
xyzzyz wrote: post #52

Earlier quoted context omitted.

Yes, and why did people ask for these oversized networks? That’s right, because addresses were free.

That's a depressingly shallow knee-jerk-y way of reasoning around something so fantastically open as the Internet... You're offering the deplorable solution of "let the money vote" instead of reason and restraint. The consequence if we had asked for money from the get-go would've been a corporate-ruled scenario where connectivity and Internet foothold were primarily in the hands of the businesses that had the most mo…

The world is not black and white, and paid service can easily coexist with subsidized service. There are many examples of “it costs you $XX but ask us if you need it badly” policies. The best varieties probably do some degree of vetting (because otherwise would slightly defeat the point or make it impractical, especially while LLMs are cheap enough that anyone can use one to write a convincing tear-jerker) and have objective criteria.

I haven’t thought enough to say whether it makes sense for specific cases like IP address allocation, though.

Re: Using the Internet without IPv4 connectivity

#119

Post by lostmsu »

neilalexander wrote: post #14
Gigachad wrote: post #5

Earlier quoted context omitted.

Is github accessible by v6 as long as you use the app?

No, their policy is that you have to use IPv6-capable sockets and APIs, not that the remote endpoints are accessible over IPv6.

That's, effectively, a non-policy.

Re: Using the Internet without IPv4 connectivity

#120

Post by lostmsu »

avhception wrote: post #10

I'm operating a few IPv6-only VPNs at work, for access to internal infrastructure. The biggest problem so far is that Windows and macOS clients need a v6 DNS server. Otherwise, they won't even try to resolve v6onlyhost.vpn.example.com. Because the client may or may not be in a v6-enabled network, I have to run a DNS server inside the VPN and push that to the client, which can lead to all kinds of problems when the VP…

This is not Windows. I also had a similar problem on random hotspots, but not on all of them. I believe it's the moronic hotspots that don't return AAAA records when IPv6 is disabled.
Post reply on HN